San Juan, TX vs Phoenix, AZ

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

San Juan is warmer than Phoenix (77.4°F vs 72.5°F annual avg) and wetter than it (22.2 in vs 8.9 in per year). San Juan has a Semi-arid (hot) climate; Phoenix a Desert (hot) climate.

San Juan, TX

Annual avg
77.4°F
Annual precip
22.2 in
Warmest month
August (99.6°F)
Coldest month
January (52.7°F)
Annual swing
26.5°F
Pleasant months
3 / 12
Semi-arid (hot) BSh USDA Zone 10b

Phoenix, AZ

Annual avg
72.5°F
Annual precip
8.9 in
Warmest month
July (104.0°F)
Coldest month
December (42.7°F)
Annual swing
39.1°F
Pleasant months
2 / 12
Desert (hot) BWh USDA Zone 9b

Best months to visit each city

San Juan

J
F
M
A
M
J
J
A
S
O
N
D

Phoenix

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month San Juan Phoenix
High Low Precip High Low Precip
January 72.8°F 52.7°F 0.77 in 65.4°F 44.1°F 1.17 in
February 77.4°F 56.9°F 0.72 in 68.1°F 46.1°F 1.21 in
March 83.2°F 62.7°F 1.38 in 75.0°F 50.9°F 1.09 in
April 88.4°F 68.4°F 1.43 in 82.5°F 56.6°F 0.35 in
May 93.1°F 74.1°F 2.03 in 91.5°F 64.7°F 0.19 in
June 97.4°F 78.0°F 3.05 in 101.5°F 72.7°F 0.03 in
July 98.5°F 78.8°F 2.03 in 104.0°F 80.8°F 0.81 in
August 99.6°F 78.9°F 1.81 in 102.5°F 80.5°F 0.96 in
September 94.3°F 75.6°F 4.61 in 97.5°F 74.7°F 0.71 in
October 89.3°F 68.7°F 2.10 in 86.3°F 62.7°F 0.67 in
November 80.2°F 60.1°F 1.17 in 74.0°F 50.8°F 0.90 in
December 73.8°F 54.1°F 1.06 in 63.9°F 42.7°F 0.81 in
San Juan overview
Full climate profile
 Phoenix overview
Full climate profile